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Operation Manual

I-Tech HD DriveCore Series Power Amplifiers

page 68

I-Tech HD DriveCore Series Power Amplifiers

Operation Manual

page 69

THIS PAGE INTENTIONALLY LEFT BLANK

Summary of Contents for I-Tech 4x3500 HD

Page 1: ...arise during installation operation or maintenance The information provided in this manual was deemed accurate as of the publication date However updates to this information may have occurred To obtai...

Page 2: ...te nance ATENCION CON ESTOS S MBOLOS El tri ngulo con el s mbolo de rayo el ctrico es usado para alertar al usuario de el riesgo de un choque el ctrico El tri ngulo con el signo de admiraci n es usado...

Page 3: ...up and operate your amplifier It does not cover every aspect of installation setup or operation that might occur under every condition For addi tional information please consult the online help in Sys...

Page 4: ...way from the amplifier 2 2 Connecting to AC Mains WARNING The third ground prong of the supplied AC power cord connector is a required safety feature Do not attempt to disable this ground connection b...

Page 5: ...l voltages exist at the output connectors when the amplifier is turned on and is passing a signal Using the guidelines below select the appropriate size of wire based on the distance from amplifier to...

Page 6: ...governments businesses and individuals everywhere Reducing energy consumption is fundamental to the reduction of greenhouse gas emissions and is likely to impact various elements of our lifestyle Main...

Page 7: ...fast recovery on peak transients accurate reproduction of low level detail and precise tracking of low frequencies at high power levels for maximum subwoofer output Figure 4 1 I Tech HD 2 Channel Fron...

Page 8: ...stantly flashing 7 Do not overdrive the mixer which will cause clipped signal to be sent to the amplifier Such signals will be reproduced with extreme accuracy and loudspeaker damage may result 8 Do n...

Page 9: ...THE RISK OF ELECTRIC SHOCK GROUNDING MUST BE MAINTAINED OUTPUTS CH1 CH2 CH3 CH4 CLASS 2 OUTPUT WIRING REG U S PAT OFF 5 657 219 6 504 348 6 909 321 7 283 379 7 557 622 7 919 998 7 778 324 7 521 936 7...

Page 10: ...reach the desired channel then press the encoder wheel to select that channel and turn the Encoder Attenuation changes 0 5 dB per detent when you turn the Encoder slowly and more when you turn the En...

Page 11: ...ator Link You can set the attenudators to be independent or linked Turn an Encoder knob to choose one of those options then press the knob to save your choice AES Input Trim Turn the Encoder knob to v...

Page 12: ...the encoder wheel to select a channel icon to turn speaker load monitoring on or off for a channel When load monitoring is on the load connected to the amplifier output is displayed The text below th...

Page 13: ...A line voltage error occurs if the line voltage falls outside the values set with the High Low Limits slider on the Line Voltage Page of the Control Panel When an error occurs the count displayed in...

Page 14: ...he drive levels frequency bands delays and limiting for your particular speakers EQ filtering compression and much more System Architect software lets you adjust the DSP settings such as filter slope...

Page 15: ...4 channels of digital audio using a standard CAT5 cable 7 6 Networking the Amplifier If you need help understanding network concepts please see Appendix A on Network and CobraNet Basics Please check...

Page 16: ...2 3 and 4 Level Controls set the input signal level of each channel Each channel can be muted and both faders can be linked with the Link button Input Signal Level Meter green The measure ment range...

Page 17: ...gnal Detect Threshold that the user defines the input switches to the analog signal As long as the analog signal level exceeds the threshold or as long as its level falls below threshold for a user de...

Page 18: ...fined as the time it takes the compressor to attenuate the signal gain by 20 dB The range is from 1 millisecond to 0 1 second Release Time Sets the release time of the compressor The release time is d...

Page 19: ...ed in various configurations In Duplicate mode the same settings are used on both channels allowing two FIR filters per bandpass In Unique mode the FIR filters are limited to one per bandpass However...

Page 20: ...h amplifier LCD screens to lock so they can t be changed 7 Advanced Operation 7 7 13 Amplifier Settings The Amplifier Output Enable button turns each channel on or off Error Reporting The I Tech ampli...

Page 21: ...green LED After blackout mode is enabled an Encoder press turn will reactivate the display If no button is pressed turned for over 5 seconds the display will return to blackout mode Front Panel Displ...

Page 22: ...at the same time 7 Advanced Operation Maximum analog input Low 21 dBu 0 dB High 15 dBu 6 dB Analog input AES input Cobranet input Analog input sensitivity Source select AES input trim Cobranet input t...

Page 23: ...input Check gain staging and output levels of the mixer or preamp 8 Troubleshooting CONDITION No sound even though the amp has power Power LED is on with out flashing and the amp is receiving an inpu...

Page 24: ...6 kHz Cirrus Logic Digital Input AES EBU 24 bit 32 96 kHz Onboard sample rate converter Network Onboard HiQnet and TCP IQ compatible with standard 100Mb Ethernet hardware DSP 24 bit conversion with 32...

Page 25: ...fiers page 48 I Tech HD DriveCore Series Power Amplifiers Operation Manual page 49 Figure 9 1 Typical Frequency Response 1W Figure 9 2 Typical Crosstalk vs Frequency 9 Specifications Charts Figure 9 3...

Page 26: ...50 60 Hz Crown s Switching Power Supply minimizes the amplifier s weight Typical non switching power supplies require large heavy transformers in order to produce the required power at the output stag...

Page 27: ...etwork has its own unique MAC address The MAC address is printed on a label outside the component It is shown in hexadecimal format as 6 two byte octets such as 00 0A 40 00 DC 2F HiQnet Address When y...

Page 28: ...ailable Figure 12 3 Star Topology Figure 12 4 Multi Star Topology In System Architect you create audio connections between sending devices transmitters and receiving devices receivers For example a mi...

Page 29: ...14 4 Peak Limiter Release sec In Auto mode the peak limiter release time is determined by the high pass frequency defined in the XOVER block For Advanced and Manual modes the peak limiter release time...

Page 30: ...Slope Kp Ki Look Ahead 15 Appendix B Table of Parameters Modified by Each Mode with LevelMAX Limiter Suite Enabled Parameter Auto Increment Peak Threshold See Below 1 400V 1V Peak Release 0 1ms 10s 1m...

Page 31: ...f Rates Yes but with phase distortion Yes without phase distortion Implement Complex Filters No Yes Stability Conditionally Naturally Stable Computational Complexity Few CPU cycles Massive CPU cycles...

Page 32: ...way system measured here has a woofer and tweeter that are separated by about 5 5 which creates an off axis polar null at about 25 at the 3 kHz crossover frequency Fig 16 4 Magnitude left and phase ri...

Page 33: ...er and the resultant summed 1m on axis response Note the extremely sharp filter rolloffs in the left magnitude graph Note also that the right on axis response is essentially identical to the previous...

Page 34: ...the product s front panel facing the same direction as arrows indicate 3 Reset center cushion down over top of product s chassis The foam in place packing was molded to accommodate different chassis...

Page 35: ...ration Manual I Tech HD DriveCore Series PowerAmplifiers page 68 I Tech HD DriveCore Series Power Amplifiers Operation Manual page 69 THIS PAGE INTENTIONALLY LEFT BLANK THIS PAGE INTENTIONALLY LEFT BL...

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